Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average snowfall in January
- Average snowfall days in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
Weather in January
Temperature
Transitioning from December to January, Winston observes an average high-temperature of a still chilly 48.7°F (9.3°C), differing subtly from the previous month. Throughout January, an average nighttime temperature of 33.8°F (1°C) is experienced in Winston.Humidity
In January, the average relative humidity in Winston is 86%.Rainfall
In Winston, Oregon, during January, the rain falls for 15.4 days and regularly aggregates up to 3.5" (89mm) of precipitation. In Winston, during the entire year, the rain falls for 148.4 days and collects up to 25" (635mm) of precipitation.Snowfall
Months with snowfall are January through March, November and December. In Winston, in January, snow falls for 0.9 days, with typically accumulated 0.31" (8mm) of snow. In Winston, during the entire year, snow falls for 4.7 days and aggregates up to 3.03" (77mm) of snow.Daylight
The average length of the day in January in Winston is 9h and 26min.On the first day of the month, sunrise is at 7:45 am and sunset at 4:49 pm. On the last day of January, in Winston, sunrise is at 7:29 am and sunset at 5:24 pm PST.
Sunshine
In Winston, the average sunshine in January is 4.4h.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Winston. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for the ordinary person.Note: The daily maximum UV index of 2 in January interprets into the following advice:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
Frequently asked questions
What is the average January temperature in Winston?
What is the average humidity in January in Winston?
How many days does it rain in January in Winston?
How much does it snow in Winston in January?
How many hours of daylight does Winston have in January?
What time are sunrise and sunset in January in Winston?
How many hours of sunshine does Winston have in January?
What are the months with the lowest UV index in Winston?
What is the UV index reading in January in Winston?
Average temperature in January
Winston, OR
- Average high temperature in January: 48.7°F
The warmest month (with the highest average high temperature) is August (81°F).
The month with the lowest average high temperature is December (46.2°F).
- Average low temperature in January: 33.8°F
The month with the highest average low temperature is August (47.5°F).
The coldest month (with the lowest average low temperature) is December (32.9°F).
Average pressure in January
Winston, OR
- Average pressure in January: 30.12"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is August (30"Hg).
Average wind speed in January
Winston, OR
- Average wind speed in January: 4mph
The windiest month (with the highest average wind speed) is January (4mph).
The calmest months (with the lowest average wind speed) are September and October (3.2mph).
Average humidity in January
Winston, OR
- Average humidity in January: 86%
The months with the highest relative humidity are February and December (87%).
The months with the lowest relative humidity are July and August (71%).
Average rainfall in January
Winston, OR
- Average rainfall in January: 3.5"
The wettest month (with the highest rainfall) is December (3.74").
The driest month (with the least rainfall) is August (0.2").
Average rainfall days in January
Winston, OR
- Average rainfall days in January: 15.4 days
The month with the highest number of rainy days is March (19.4 days).
The month with the least rainy days is July (3.5 days).
Average snowfall in January
Winston, OR
- Average snowfall in January: 0.31"
The month with the highest snowfall is February (1.26").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in January
Winston, OR
- Average snowfall days in January: 0.9 days
The month with the highest number of snowfall days is February (1.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in January /
Average sunshine in January
Winston, OR
- Average daylight in January: 9h and 2min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in January: 4h and 2min
The months with the most sunshine are July and August (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 4h and 12min).
Average sunshine days in January
Winston, OR
- Average sunshine days in January: 13.6 days
The month with the most sunshine days is August (26.2 days).
The month with the least sunshine days is March (9.7 days).
Average UV index in January
Winston, OR
- Average UV index in January: 2
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in January
Winston, OR
- Average cloud cover in January: 55
The month with the most cloud cover is March (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in January
Winston, OR
- Average visibility in January: 4mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (4mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (4mi).
Winston, Oregon, USA
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